Raman gratings
Highest efficiency gratings. When efficiency matters
Ibsen Photonics manufactures Raman transmission gratings with the world’s highest polarization independent diffraction efficiencies and high grating dispersion, enabling high resolution in compact, cost effective spectrometer designs.
Ibsen’s Raman gratings are advanced, polarization-independent (PING) gratings fabricated using advanced lithographic or holographic stepper patterning combined with reactive ion etching in 100% dielectric materials. This technology provides unmatched thermal and environmental stability, with no polymers, epoxies, gelatins, or metals in the optical path – or anywhere in the grating structure.
The precision of our etching technology delivers industry-leading diffraction efficiency and ultra-low polarization-dependent loss (PDL) across an exceptionally broad bandwidth. Additionally, the gratings’ low angular sensitivity simplifies module design and facilitates seamless integration.
Key benefits
Product overview
While Raman gratings are extensively supplied as OEM components, the following models – along with many others – are available from stock. You can place an order directly via the product links or request a quote for these or fully customized gratings tailored to your specific needs.
Our Raman gratings
| Grating | Spectrum | Wavelength range | Resolution | Grating area | Substrate size |
|---|---|---|---|---|---|
| FSTG-UV2849-941ds | UV | 263 nm - 276 nm | 2849 l/mm | 34 mm x 40 mm | 36 mm x 42 mm |
| FSTG-VIS2212-354ds | VIS | 532 nm - 732 nm | 2212 l/mm | 28 mm x 21 mm | 30 mm x 24 mm |
| Raman FSTG-NIR1500-908 | NIR | 785 nm - 1100 nm | 1500 l/mm | 16 mm x 12 mm | 19 mm x 15 mm |
| FSTG-NIR1500-356ds | NIR | 785 nm - 1100 nm | 1500 l/mm | 28 mm x 21 mm | 30 mm x 24 mm |
| FSTG-NIR1500-909 | NIR | 785 nm - 1100 nm | 1500 l/mm | 30 mm x 15 mm | 33 mm x 18 mm |
Ibsen as your grating manufacturer
At Ibsen Photonics, we recognize that the optical grating is a mission-critical component in your device or instrument, where performance and reliability are non-negotiable.
As an ISO 9001 and 13485 certified manufacturer, we bring decades of expertise in both prototyping and high-volume production of transmission gratings. Our focus is unwavering: to deliver superior, consistent quality.
Our commitment is backed by robust, proven designs, 100% metrology on diffraction efficiency, and comprehensive outgoing inspection. The result? Hundreds of thousands of gratings deployed in the field – without a single reliability failure or return.
We maintain stable supply chains through long-standing partnerships with qualified sub-suppliers and offer flexible delivery models tailored to OEM needs, including frame orders and Kanban agreements.
Partnering with Ibsen means you can rely on a trusted, experienced grating supplier – so you can stay focused on advancing your core technology.
Advantages working with Ibsen:
Which transmission grating to use?
Get in contact with our technical specialists about your product, technical, or support questions below.